Streptomyces albus와 streptomyces globosus의 몇가지 생장생리적 특성에 관하여
Some physiological properties in relation to the growth of the antibiotics producing streptomyces spp.
서용만, 이형근, 홍순우,
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서용만 ( )
서울대학교 자연과학대학 미생물학과
이형근 ( Lee Hyung-Keun )
숙명여자대학교 이과대학 생물학과
홍순우 ( )
서울대학교 자연과학대학 미생물학과
KMID : 0364819770150030123
Abstract
In previous paper, it was reported that antibiotic substance such as tetracycline and streptomycin were produced by S´. albus subsp. and S´. globosus. And increase of mycelial growth of two strains, antibiotic production, and changes of pH range are extended to approximately 110-130 hrs in fermenting medium, there-after they decreased with culture period exception of pH range. Two Streptomyces spp. required commonly 4-5% starch as carbon sources and 1.5-2.0% soybean meal as nitrogen sources. However, 0.005-0.01M potassium phosphate dibasic, calcium carbonate (6mg/ml in S.albus subsp. and 2mg/ml in S. globosus), 0.01-0.03M, magnesium sulgate and 0.01M ferric chloride showed as optimal concentration for the growth of 2 strains. Mineral components such as zinc, manganese, cobalt, sodium and copper at the level of 10^-4 - 10^-6 M were observed. Especially, zinc ion showed toxicity to the growth of 2 strains at 0.005M. In relation with pH, there is a little difference in mycelial growth with cultural initial pH.
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